JP3059224U - Disposable pants - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the appearance and improve the peel strength of a joint portion. An end protruding outward from an anterior abdominal part and a back part are provided.
It is bent to the B side and joined to the front part 12A or the back part 12B. Both end portions 13b where the front part 13A and the back part 13B are joined are folded inward between the front part 13A and the back part 13B.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to disposable pants that have good appearance and improved peel strength at a joint.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 5, while the sheet-like body 1 to be molded into pants is moved in the unfolded state (see the range F) in the direction of the arrow A, the hole 2a for both legs is formed in the center position C in the width direction in the longitudinal direction. After being formed at a constant pitch P and overlapping the two at the center in the width direction (corresponding to the crotch 2D) C (see range G), the intermediate position in the longitudinal direction of the hole 2a for both legs is determined. In some cases, the disposable pants 2 are manufactured by welding or bonding, and cutting off the bonding portion 2b at the middle a.

As shown in FIG. 4, the disposable pants 2 manufactured by such a process have notched legs 2C formed between the front abdomen 2A and the back 2B, and the front abdomen 2A and the rear abdomen. Both end portions (adhesive portions) 2b of the back portion 2B are joined to each other and project outward.

FIG. 4 shows a disposable underpants 2 used as diapers for infants and adults with incontinence, and thus has an absorbent body 2E at the crotch 2D. In the case of disposable pants for rows, the absorber 2E is unnecessary.

[0005]

[Problems to be solved by the invention]

 However, in the above-mentioned conventional disposable pants 2, both ends (adhesive portions) 2b project outward by 5 to 20 mm, respectively, so that there is a problem in that the appearance is poor and the underwear is poor. In addition, when attaching and detaching the disposable pants 2, there is a problem that the joints at both ends (adhesive portions) 2b are easily peeled off by the force in the direction of arrow B when the space between the front abdomen 2A and the back 2B is greatly widened.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide disposable pants having good appearance and improved peel strength at a joint portion.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, a first aspect of the present invention is that a notch-like two legs are formed between the front abdomen and the back in the unfolded state, and the front abdomen and the rear are centered around the crotch. Disposable pants in which the back is overlapped and both ends of the front abdomen and the back are joined to each other, and the joined both ends of the front abdomen and the back are protruded outward. The disposable pants are characterized in that both ends are bent toward the front abdomen or the back, and are joined to the front abdomen or the back.

According to the first aspect, both ends protruding outward from the front abdomen and the back are bent toward the front abdomen or the back, and are joined to the front abdomen or the back. Both ends hardly protrude outward. It is not always necessary to bend both ends to the same side, and they may be bent to opposite sides.

A second aspect of the present invention is that the notch-like two legs are formed between the anterior abdomen and the back in the unfolded state, and the anterior abdomen and the back are overlapped around the crotch. The disposable pants in which both ends of the front abdomen and the back are joined to each other, and the joined both ends of the front abdomen and the back are located inward between the front abdomen and the back. It is intended to provide disposable pants characterized by being folded.

[0010] According to the second aspect, since the joined both ends of the front abdomen and the back portion are folded inward between the front abdomen and the back portion, the both end portions do not protrude outward at all.

Further, the folding in claim 2 is such that the front abdomen and the back are overlapped with each other with the crotch as a center, and furthermore, from the boundary between the legs and the front abdomen and the back. With the anterior abdomen and the back behind folded back and overlaid on both legs, the anterior abdomen and the back dorsal are joined to each other in a back-to-back manner, with the anterior abdomen and the back back facing each other. It is preferable to adopt a configuration in which the joined both ends are folded inward between the front abdomen and the back by being folded back.

[0012]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The parts having the same configuration and operation as those of the prior art are denoted by the same reference numerals, and detailed description is omitted.

FIG. 1 shows a disposable pants 12 according to the first embodiment. The disposable pants 12, as in the prior art shown in FIG. 5, move the sheet-like body 1 to be formed into the pants in the unfolded state (see the range F) in the arrow direction A, and move both legs to the center position C in the width direction. The holes 12a are formed at a constant pitch P in the longitudinal direction, and are overlapped with each other around the center position C (corresponding to the crotch portion 12D) in the width direction (see range G). An intermediate position in the longitudinal direction of 12a is joined by welding or bonding, and the bonded portion 12b is cut off at the intermediate position.

As shown in FIG. 1A, the disposable pants 12 manufactured by the above process have notched legs 12C formed between the front abdomen 12A and the back 12B. As in the prior art shown in FIG. 4, both ends (adhesive portions) 12b of the front abdomen 12A and the rear back 12B are joined to each other and protrude outward (see a two-dot chain line b).

Therefore, as shown in FIG. 1B, both ends 12 b protruding outward from the front abdomen 12 A and the back dorsal part 12 B are bent toward the front abdomen 12 A as shown by an arrow c, and 12A by welding or bonding. Alternatively, as shown in FIG. 1 (c), both ends 12b protruding outward from the front abdomen 12A and the back dorsal part 12B are bent toward the back dorsal part 12B as shown by an arrow d, and are welded to the dorsal part 12B. Bond with adhesive.

[0016] As a result, both ends (adhesive portions) 12b of the front abdomen 12A and the back dorsal portion 12B hardly protrude outwardly, so that the appearance is improved, the undergarment is improved, and the commercial value is improved. . Further, since the bent both end portions 12b are joined to the front abdomen portion 12A or the back portion 12B, when attaching and detaching the disposable pants 12, the force in the direction of arrow B when the space between the front abdomen portion 12A and the back portion 12B is greatly widened. The bonding of the portion (adhesive portion) 12b is hardly peeled off, and the commercial value is improved from this point as well.

The ends 12b do not necessarily need to be bent to the same side. For example, the left side may be bent to the front abdomen 12A side and the right side may be bent to the back side 12b side. Absent.

FIGS. 2 and 3 show a disposable pants 13 according to a second embodiment. In this disposable pants 13, both end portions 13b where the front abdomen 13A and the back 13B are joined are folded inward between the front abdomen 13A and the back 13B.

As a result, both ends (adhesive portions) 13b of the front abdomen 13A and the back 13B do not protrude outwardly, so that the appearance is improved, the undergarment becomes more comfortable, and the commercial value is improved. . Further, since the both end portions 13b are folded inward, when attaching and detaching the disposable pants 13, both ends (adhesive portion) are applied by the force in the direction of arrow B when the space between the front abdomen portion 13A and the back portion 13B is greatly widened. ) 13b is less likely to come off and the commercial value is improved in this respect as well.

FIG. 3 shows a manufacturing process of the disposable pants 13. The sheet-like body 1 to be molded into the pants is moved in the unfolded state (see the range F) in the arrow direction A, and the two leg portions are moved to the center position C1 in the width direction. The holes 13a are formed at a constant pitch P in the longitudinal direction, and are overlapped with each other around the center position C1 in the width direction (corresponding to the crotch portion 13D) C1 (see the range G). The front abdomen 13A and the back 13B are folded back from the boundary C2 between the front abdomen 13A and the back 13B and overlapped on both legs 13C (see range H). The intermediate position in the longitudinal direction is joined by welding or bonding, and this bonded portion 13b is cut at both ends at the intermediate a.

In this cut state, the front abdomen 13A, the crotch 13D, and the back 13B have side cross-sectional shapes as schematically shown in FIG. 3B, and thereafter, as shown in FIG. By folding back the front abdomen 13A and the back 13B, respectively (see arrow e), the joined both ends (adhesive portions) 13b are naturally folded inward between the front abdomen 13A and the back 13B. (See FIGS. 3D and 2B).

In such a manufacturing process, the front abdominal portion 13A and the back portion 13B are joined to each other with their opposite end portions 13b facing down, and then the front abdominal portion 13A and the back portion 13B are simply turned upside down. Since the joined end portions 13b can be folded inward between the front abdomen portion 13A and the back portion 13B, the inward folding of the joined end portions 13b is performed in a continuous manufacturing process of disposable pants. Since it can be done automatically, productivity will be improved.

[0023]

[Effect of the invention]

 As is clear from the above description, claim 1 of the present invention is characterized in that both ends protruding outward from the anterior abdomen and the back are bent toward the anterior abdomen or the back. Since the bonding is performed, the both ends hardly protrude outward, so that the appearance is improved, the undergarment is improved, and the commercial value is improved. In addition, since the bent both ends are joined to the front abdomen or the back, the peel strength is improved, and when attaching and detaching disposable pants, the joint at the both ends is peeled even if the space between the front abdomen and the back is greatly widened. It is less likely to come off, and this also improves the commercial value.

According to the second aspect of the present invention, since the joined both ends of the anterior abdomen and the back are folded inward between the anterior abdomen and the back, the both ends do not protrude outward. This will improve the quality of the product and improve its value. In addition, since both ends are folded inward, the peel strength is improved, and when attaching and detaching disposable pants, the joints at both ends are not easily peeled even if the space between the front abdomen and the back is greatly widened. From this point, the commercial value is improved.

Further, in the folding structure according to the third aspect, after both ends of the front abdomen and the back are joined to each other in a face-down manner, the front abdomen and the back are simply folded back to the front, respectively. Since the part can be folded inward between the front and back parts, the inward folding of the joined ends can be performed automatically in the continuous production process of disposable pants, Productivity is improved.

[Brief description of the drawings]

1A and 1B are disposable pants according to a first embodiment of the present invention, wherein FIG. 1A is a front perspective view, FIG. 1B is an enlarged perspective view of main parts with both ends bent toward the front abdomen, and FIG. It is the principal part perspective view which bent the back part side.

2A and 2B are disposable pants according to a second embodiment of the present invention, wherein FIG. 2A is a front perspective view, and FIG. 2B is an enlarged perspective view of a main part with both ends folded inward.

FIG. 3A is a manufacturing process diagram of the disposable pants according to the second embodiment, FIG. 3B is a side cross-sectional view of the front abdomen and the back part turned back, and FIG. 3C is a front abdomen and a back part. Is a side cross-sectional view in a state in which is turned upside down, and (d) is a side view of (c).

FIG. 4 is a conventional disposable pants, (a) is a front perspective view, and (b) is an enlarged perspective view of a main part of (a).

FIG. 5 is a manufacturing process diagram of a conventional disposable pants.

[Explanation of symbols]

 12, 13 disposable pants 12A, 13A front abdomen 12B, 13B back 12C, 13C both legs 12D, 13D crotch 12b, 13b both ends (adhesion)

Claims (3)

[Utility model registration claims] 1. A notched leg is formed between an anterior abdomen and a back portion in an unfolded state, and the anterior abdomen and the back portion are superimposed on the crotch portion so that the anterior abdomen and the rear portion are formed. Disposable pants in which both ends of the back are joined to each other, wherein the joined ends of the front abdomen and the back are projected outward, and the both ends are the front abdomen or the back. A disposable pants characterized by being bent to the front and joined to the front abdomen or the back. 2. In the unfolded state, notched legs are formed between the anterior abdomen and the back, and the anterior abdomen and the back are superimposed on the crotch, so that the anterior abdomen and the back Disposable pants in which both ends of the back are joined to each other, characterized in that the joined both ends of the front abdomen and the back are folded inward between the front abdomen and the back. And disposable pants. 3. The front abdomen and the back are superimposed on the crotch, and the front abdomen and the back are folded back from the boundary between the legs and the front and abdomen. In the state of being superposed on the front part, both ends of the front abdomen and the back part are joined to each other face down, and the front part and the back part are respectively turned back, so that the joined both ends become the front part. The disposable pants according to claim 2, wherein the pants are folded inward between the back and the back.